Exhibit 24 (B)
POWER OF ATTORNEY
KNOW ALL MEN BY THESE PRESENTS, that the undersigned, a director or an officer, or both, of Cytec
Industries Inc., a Delaware corporation ("Cytec"), does hereby make, constitute and appoint D. Lilley, J. P.
Cronin and E. F. Jackman, the address of each of which is in care of Cytec, 5 Garret Mountain Plaza, West
Paterson, New Jersey 07424, and each of them, the true and lawful attorney for the undersigned, with full power
of substitution and revocation to each for the undersigned, and in the name, place and stead of the undersigned,
to sign in any and all capacities and to file or cause to be filed, an annual report on Form 10-K with the Securities
and Exchange Commission, pursuant to the Securities Exchange Act of 1934, as amended, and any and all
amendments to such Form 10-K, hereby giving to each of such attorneys full power to do everything whatsoever
required or necessary to be accomplished in and about the premises as fully as the undersigned could do if
personally present, hereby ratifying and confirming all that such attorney or substitutes or any of them shall
lawfully do or cause to be done by virtue thereof.
IN WITNESS WHEREOF, the undersigned has set his hand as of this 25th day of March, 2000.
/s/ F.W. Armstrong
F. W. Armstrong